LEMONT, Ill — No other FedEx Cup playoff event is more complicated than the BMW Championship, with players trying to finish in the top 30 to get to the Tour Championship, others calculating the movement they need to make the Presidents Cup team and some trying to do the math on both.

Perhaps it was only fitting that the winner was Justin Rose, whose goal all week was to keep it simple.

It started on Tuesday, when Rose had a practice session with coach Sean Foley to make sure his club was on line at the top of his swing. Rose tried to limit his swing thoughts to only one key, which was to rotate his hips.

For the mental side of the game, he decided not to carry a yardage book and instead relied on his caddie, Mark Fulcher. Rather than taking enough numbers to make an algebra teacher dizzy, he asked Fulcher to tell him only how long the shot was playing.

And when the rain finally stopped Sunday, he ditched the cumbersome layers of waterproof gear that had been getting in his way.

“I think mentally this is the best I’ve ever been in terms of being very under control with my emotions, being very calm, being very aware of the situation and feeling comfortable with it,” Rose said. “I may have had better ball-striking weeks as a whole, but I think this week, as a competitor and as a professional, I think it was probably my best-ever performance.”